Home / 25,407.28-38,113.48-8,765.12

Finding the Fourth Proportional to 25,407.28, 38,113.48 and 8,765.12

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Solution

The fourth proportional to 25,407.28, 38,113.48 and 8,765.12 is: 13,148.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,407.28 : 38,113.48 = 8,765.12 : x
  2. Step 2: Convert to fraction form
    25,407.28/38,113.48 = 8,765.12/x
  3. Step 3: Cross multiply
    25,407.28x = 38,113.48 × 8,765.12
  4. Step 4: Simplify right side
    25,407.28x = 334,069,225.82
  5. Step 5: Solve for x
    x = 334,069,225.82/25,407.28
  6. Step 6: Final answer
    x = 13,148.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.